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      'Fairy Chimney'-Shaped Tandem Metamaterials as Double Resonance SERS Substrates

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      Author(s)
      Cinel, N. A.
      Butun, S.
      Ertas, G.
      Özbay, Ekmel
      Date
      2012-10-12
      Source Title
      Small
      Print ISSN
      1613-6810
      Publisher
      Wiley-VCH Verlag
      Volume
      9
      Issue
      4
      Pages
      531 - 537
      Language
      English
      Type
      Article
      Item Usage Stats
      228
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      277
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      Abstract
      A highly tunable design for obtaining double resonance substrates to be used in surface-enhanced Raman spectroscopy is proposed. Tandem truncated nanocones composed of Au-SiO2-Au layers are designed, simulated and fabricated to obtain resonances at laser excitation and Stokes frequencies. Surface-enhanced Raman scattering experiments are conducted to compare the enhancements obtained from double resonance substrates to those obtained from single resonance gold truncated nanocones. The best enhancement factor obtained using the new design is 3.86 x 107. The resultant tandem structures are named after Fairy Chimneys rock formation in Cappadocia, Turkey.
      Keywords
      Localized Surface Plasmons
      Surface Enhanced Raman Scattering
      Double Resonances
      Au-sio2-au
      Tandem Nanocones
      Permalink
      http://hdl.handle.net/11693/11977
      Published Version (Please cite this version)
      http://dx.doi.org/10.1002/smll.201201286
      Collections
      • Department of Electrical and Electronics Engineering 4016
      • Department of Physics 2551
      • Nanotechnology Research Center (NANOTAM) 1180
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